Total Bridges
12,699
Public highway bridges in Louisiana
State profile · Above national median SD
Louisiana bridge safety
Condition ratings, load ratings, and structural-deficiency data for every public highway bridge in Louisiana — drawn straight from the FHWA National Bridge Inventory.
- 12,699
- Public bridges
- 36.2%
- Good condition
- 11.0%
- Poor condition
- 11.0%
- Structurally deficient
Good Condition
36.2%
4,603 bridges rated 7-9
-13.8pp vs 50% benchmark
Poor Condition
11.0%
1,397 bridges rated 0-4
Structurally Deficient
11.0%
1,397 bridges flagged for repair priority
4.0pp vs national avg 7.0%
Louisiana vs national bridge condition
Louisiana — Good condition share 36.2%
National avg
Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).
Louisiana — Structurally deficient share 36.7%
National avg
Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.0%.
Condition Distribution
Bridge inventory deck-condition mix — Louisiana (FHWA NBI)
Counties (64)
Acadia 282 Allen 178 Ascension 216 Assumption 68 Avoyelles 147 Beauregard 221 Bienville 190 Bossier 270 Caddo 682 Calcasieu 463 Caldwell 124 Cameron 58 Catahoula 70 Claiborne 148 Concordia 42 De Soto 201 East Baton Rouge 548 East Carroll 55 East Feliciana 133 Evangeline 156 Franklin 131 Grant 209 Iberia 143 Iberville 80 Jackson 163 Jefferson 379 Jefferson Davis 240 LaSalle 195 Lafayette 323 Lafourche 130 Lincoln 171 Livingston 253 Madison 104 Morehouse 136 Natchitoches 313 Orleans 382 Ouachita 337 Plaquemines 34 Pointe Coupee 50 Rapides 523 Red River 63 Richland 207 Sabine 195 St. Bernard 47 St. Charles 82 St. Helena 139 St. James 26 St. John the Baptist 40 St. Landry 317 St. Martin 116 St. Mary 124 St. Tammany 360 Tangipahoa 477 Tensas 52 Terrebonne 215 Union 121 Vermilion 261 Vernon 341 Washington 285 Webster 194 West Baton Rouge 73 West Carroll 88 West Feliciana 108 Winn 220
Louisiana vs nearby ranks
Adjacent states on the structurally deficient leaderboard (lower share = better)
States are ranked by share of bridges flagged structurally deficient — the FHWA classification for any span where deck, superstructure, or substructure carries a condition rating of 4 or below. Lower percentages indicate stronger maintenance funding and inspection follow-through. States here sit immediately above and below Louisiana on the same metric.
42
Pennsylvania
10.50% top marginal rate
38
North Dakota
10.84% top marginal rate
22
Louisiana
11.00% top marginal rate
72
Puerto Rico
11.98% top marginal rate
23
Maine
13.23% top marginal rate
Bridges Needing Most Attention in Louisiana
Six lowest-condition bridges in Louisiana, ranked by composite NBI rating. Each is inspected at least every 24 months.
Layton Coco Xing
Structurally DeficientOver: BAYOU DES GLAISES
0.01 MI. EAST OF LA 451, Avoyelles, LA
Built 1986 Load: 0.9 t ADT: 40
LA1077
Structurally DeficientOver: BLACK BAYOU
1.1 M S OF LA 22, St. Tammany, LA
Built 1965 Load: 0.9 t ADT: 1,019
LA0308
Structurally DeficientOver: BAYOU LAFOURCHE
.01 MI NORTH OF LA 1, Lafourche, LA
Built 1970 Load: 1.0 t ADT: 5,198
Ebeneezer Tap Rd
PoorOver: JONES CREEK
0.65 Mi South of LA 500, LaSalle, LA
Built 1989 Load: 1.2 t ADT: 300
Anderson Rd
Structurally DeficientOver: HYDE BR.
2 MI S OF 1054 & 440, Tangipahoa, LA
Built 1960 Load: 1.2 t ADT: 25
Stubblefield Rd
PoorOver: BAYOU ROUGE
APPROX. 1 M. S. OF LA 361, Avoyelles, LA
Built 1975 Load: 2.3 t ADT: 40
All Bridges in Louisiana
LA0006
GoodOver: TOLEDO BEND LAKE
1.7 MI WEST OF LA 191, Sabine, LA
Built 1968 Load: 32.7 t ADT: 3,030
PERIMETER ROAD
GoodOver: WEST ANACOCO CREEK
VE 680 716, Sabine, LA
Built 1978 Load: 32.7 t ADT: 40
LA0624
GoodOver: DRAIN CANAL
5.27 MILES SOUTH OF LA 46, St. Bernard, LA
Built 2011 Load: 32.7 t ADT: 1,160
LA3125
GoodOver: PIPELINE CROSSING
0.6 M E of LA 70, St. James, LA
Built 1980 Load: 32.7 t ADT: 10,807
Domengeaux Rd.
GoodOver: Drainage Canal
1.0 MI E of LA 93, St. Landry, LA
Built 2000 Load: 32.7 t ADT: 150
Noel Rd
GoodOver: Plaquemine Bayou
0.5 Mi SE. of La 35, St. Landry, LA
Built 2000 Load: 32.7 t ADT: 525
Dupre Rd
GoodOver: DRAINAGE CANAL
0.9 N of LA 3043, St. Landry, LA
Built 2000 Load: 32.7 t ADT: 325
White Oak Rd
GoodOver: BAYOU CARRON
0.3 Mi SW of La 103, St. Landry, LA
Built 2000 Load: 32.7 t ADT: 100
Four Mile Bayou Rd
GoodOver: Coulee
4.6 Mi. NE of LA 70, St. Martin, LA
Built 2020 Load: 32.7 t ADT: 105
LA0031
GoodOver: Ruth Canal
0.6 Mi. N of LA 351, St. Martin, LA
Built 2005 Load: 32.7 t ADT: 5,397
US0090
GoodOver: 6th
1.4 MI W of LA 182/LA 70, St. Mary, LA
Built 1977 Load: 32.7 t ADT: 2,163
US0090
GoodOver: RAMP J
0.09 MI E of LA 182, St. Mary, LA
Built 1984 Load: 32.7 t ADT: 12,192
US0090
GoodOver: RAMP 'I'
0.17 MI E of LA 182, St. Mary, LA
Built 1984 Load: 32.7 t ADT: 24,384
E. W.moreland Rd
GoodOver: BUTTON CREEK
1.4 MILES SOUTHWEST OF LA, Tangipahoa, LA
Built 2011 Load: 32.7 t ADT: 125
LA0445
GoodOver: POLE BRIDGE BRANCH
1.61 MI.N OF US 190, Tangipahoa, LA
Built 2017 Load: 32.7 t ADT: 8,876
LA0443
GoodOver: CREEK
6.97 MILES N OF US 190, Tangipahoa, LA
Built 2004 Load: 32.7 t ADT: 6,478
LA0605
GoodOver: DERUSSY BAYOU
1.87 MILES FROM THE JUNCT, Tensas, LA
Built 2006 Load: 32.7 t ADT: 236
LA0055
GoodOver: HUMBLE CANAL
4.8 MI SOUTH OF LA 58, Terrebonne, LA
Built 1998 Load: 32.7 t ADT: 280
US0090
GoodOver: DRAINAGE CANAL
1.35 MI EAST OF LA 662, Terrebonne, LA
Built 1998 Load: 32.7 t ADT: 4,014
US0090
GoodOver: DRAINAGE CANAL
1.35 MI EAST OF LA 662, Terrebonne, LA
Built 1998 Load: 32.7 t ADT: 3,007
US0090
GoodOver: CHACAHOULA BAYOU
3.35 MI EAST OF LA 662, Terrebonne, LA
Built 1998 Load: 32.7 t ADT: 4,014
US0090
GoodOver: CHACAHOULA BAYOU
3.35 MI EAST OF LA 662, Terrebonne, LA
Built 1998 Load: 32.7 t ADT: 3,007
US0090
GoodOver: DEADWOOD RD, TIGER BAYOU
.02 MI EAST OF LA 3052, Terrebonne, LA
Built 1994 Load: 32.7 t ADT: 3,007
Junius Rd
GoodOver: CANAL
2.5 Mi W of La 335, Vermilion, LA
Built 1986 Load: 32.7 t ADT: 204
LA0008
GoodOver: CREEK
5.42 MI. E OF E JCT. LA 4, Vernon, LA
Built 2012 Load: 32.7 t ADT: 5,978
BEN WEST RD
GoodOver: WEST FORK PRAIRIE CR
6.5 MI NE OF ANACOCO, Vernon, LA
Built 2018 Load: 32.7 t ADT: 40
EOD BYPASS RD
GoodOver: BIG BRANCH
FORT POLK, Vernon, LA
Built 2018 Load: 32.7 t ADT: 336
Monroe Cr. Rd
GoodOver: CREEK
5.1 MILES WEST OF LA 21, Washington, LA
Built 2014 Load: 32.7 t ADT: 492
Hilltop church Rd
GoodOver: JAMERSON CREEK
9 MILES WEST OF LA 21, Washington, LA
Built 2011 Load: 32.7 t ADT: 327
Martin Rd
GoodOver: SNELL BRANCH
2.7 MILES NORTH OF LA 38, Washington, LA
Built 2011 Load: 32.7 t ADT: 310
PRK ROAD
GoodOver: CREEK
2.40 MILES EAST OF LA 25, Washington, LA
Built 2010 Load: 32.7 t
PRK ROAD
GoodOver: CREEK
3.10 MILES EAST OF LA 25, Washington, LA
Built 2010 Load: 32.7 t
I0020
GoodOver: COOLEY BRANCH
0.41M EAST OF LA 7/MINDEN, Webster, LA
Built 1960 Load: 32.7 t ADT: 44,225
LA0066
GoodOver: SIKE BRANCH CREEK
3.1 MILES WEST OF LA 969, West Feliciana, LA
Built 2009 Load: 32.7 t ADT: 1,417
LA0066
GoodOver: TUNICA BAYOU
TUNICA LA 66, West Feliciana, LA
Built 1988 Load: 32.7 t ADT: 1,677
LA0421
GoodOver: WEST FORK TOMPSON CREEK
APPROX. 4.6 MILES EAST OF, West Feliciana, LA
Built 2007 Load: 32.7 t ADT: 739
WEEMS RD
GoodOver: COCKERELL CREEK
0.18 MI E OF LA 151, Ouachita, LA
Built 2016 Load: 32.9 t ADT: 30
WILL BROWN RD
GoodOver: SOUTH CHENIERE CREEK
0.9 MI S OF LA 34, Ouachita, LA
Built 2016 Load: 32.9 t ADT: 70
LA0527
GoodOver: CREEK
1.15 MI. E OF US 71, Bossier, LA
Built 2006 Load: 33.0 t ADT: 1,951
Cool Springs Rd
GoodOver: BUSHNECK BAYOU
1.5 MI WEST OF LA 5, De Soto, LA
Built 2005 Load: 33.0 t ADT: 80
SILVERLEAF AVE
GoodOver: ROBERTS CANAL
0.43 MI NE OF US 61, East Baton Rouge, LA
Built 2018 Load: 33.0 t ADT: 15,670
Port Hudson-Pride
GoodOver: COMITE RIVER
4.9 MI NE JCT LA 67,LA 64, East Baton Rouge, LA
Built 2004 Load: 33.0 t ADT: 992
LA0562
GoodOver: BAYOU MACON
7.4 MI EAST OF LA 15, Franklin, LA
Built 1998 Load: 33.0 t ADT: 240
LA3195
GoodOver: TETE BAYOU
0.80 Mi N of La 87, Iberia, LA
Built 2008 Load: 33.0 t ADT: 7,245
W Napolean Ave
GoodOver: Canal 4
.3 miles east of Clearvie, Jefferson, LA
Built 2003 Load: 33.0 t ADT: 21,460
WOODMERE BLVD
GoodOver: COUSINS CANAL
0.2 Mi S of Laplco BLVD, Jefferson, LA
Built 2001 Load: 33.0 t
VETERANS BLVD
GoodOver: 17TH STREET CANAL
0.2 MI. E. OF LAKE AVENUE, Jefferson, LA
Built 1997 Load: 33.0 t
VETERANS BLVD
GoodOver: 17TH STREET CANAL
.2 MI E. OF LAKE AVENUE, Jefferson, LA
Built 1997 Load: 33.0 t
Rue Du Belier
GoodOver: RUE DE BELIER EXT OVER C
0.25 Mi S of LA 93, Lafayette, LA
Built 2009 Load: 33.0 t ADT: 3,472
LA0092
GoodOver: CYPRESS BAYOU COULEE
0.8 MI WEST OF US 90, Lafayette, LA
Built 2012 Load: 33.0 t ADT: 8,744
Showing 8,701-8,750 of 12,699 bridges
Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges Editorial.
Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the FHWA National Bridge Inventory (NBI). A "structurally deficient" rating is a repair-priority signal, not a closure or unsafe-to-cross designation. Consult a qualified civil engineer before making decisions based on this data.
Understanding Bridge Conditions
How FHWA rates bridge condition on a 0-9 scale.
Check Your Daily Bridges
How to look up bridge condition data for bridges on your route.
Read our methodology — how this data is sourced, computed, and verified.
| Publisher | Kiznis Studio |
| Sources | FHWA National Bridge Inventory, public U.S. government datasets |